add parse exception constructor

app/src/main/java/gr/thmmy/mthmmy/utils/parsing/NewParseTask.java

@@ -13,7 +13,7 @@ public abstract class NewParseTask<T> extends NetworkTask<T> {
         try {
             return parse(document);
         } catch (Exception e) {
-            throw new ParseException("Parse failed.");
+            throw new ParseException("Parse failed.", e);
         }
     }
 

app/src/main/java/gr/thmmy/mthmmy/utils/parsing/ParseException.java

@@ -10,4 +10,8 @@ public class ParseException extends Exception {
     {
         super(message);
     }
+
+    public ParseException(String message, Throwable cause) {
+        super(message, cause);
+    }
 }